Automatic loading/unloading structure capable of realizing half unloading

The utility model relates to an automatic loading/unloading structure capable of realizing half unloading, which is applicable to a steel wire horizontal displacement meter adopting a stepping motor type automatic measuring method. The structure comprises big and small hanging weights and a weight pallet. While a stepping motor drives a transmission screw rod to drive the weight pallet to reciprocate up and down to finish the displacement measurement, the loading and unloading of the hanging weight at each measuring point are realized. Through the skillful matching between the big and small hanging weights and the weight pallet, the half-unloading function can be realized by removing part of the load, the manual operation can be completely replaced, and automatic measurement of the steel wire horizontal displacement meter is finished.